7999008998 has 8 divisors (see below), whose sum is σ = 12177595992. Its totient is φ = 3939810336.

The previous prime is 7999008991. The next prime is 7999009001. The reversal of 7999008998 is 8998009997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7999008991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29846915 + ... + 29847182.

It is an arithmetic number, because the mean of its divisors is an integer number (1522199499).

Almost surely, 2^7999008998 is an apocalyptic number.

7999008998 is a deficient number, since it is larger than the sum of its proper divisors (4178586994).

7999008998 is a wasteful number, since it uses less digits than its factorization.

7999008998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59694166.

The product of its (nonzero) digits is 26453952, while the sum is 68.

The square root of 7999008998 is about 89437.1790588232. The cubic root of 7999008998 is about 1999.9174130897.

Subtracting 7999008998 from its reverse (8998009997), we obtain a palindrome (999000999).

The spelling of 7999008998 in words is "seven billion, nine hundred ninety-nine million, eight thousand, nine hundred ninety-eight".